Any of several nonvenomous, semiaquatic snakes of the genus Eunectes of tropical South America that kill by coiling around their prey, especially E. murinus, which can attain a length of up to 9 meters (29.5 feet).
[Earlier, a large snake of Sri Lanka, from New Latin anacandaia, from Sinhalese heṇakandayā : heṇa, thunderbolt (from Middle Indic asaṇi, from Sanskrit aśaniḥ; see ak- in the Appendix of Indo-European roots) + kanda, stem, trunk, body (from Middle Indic khandha-, from Sanskrit skandhaḥ, shoulder, upper back).]
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